TF10175: The team project does not exists

I got rid of the message by deleting my Workspace.

Note: This will remove all your local mappings. Therefore you should checkin all changes before deleting it. After re-connecting to your TFS a new workspace will be created automatically.

To delete the workspace follow these steps:

1. In "Team Explorer" select "Pending Changes"
2. Beside the "Check In" button click on "Actions" and select "Manage Workspaces…"
3. Select the Workspace and press "Remove"